Broken brocade disease in geranium virus disease
[pathogen] Pelargonium flower brocade virus (Pelargoniumflowerbreakvirus,PFBV), lethal temperature 85-90 ℃.
[symptoms] there are dark and light variegated stripes on some varieties of flowers, flower deformities become smaller, seedling leaves show faded spots, and sometimes leaves appear necrotic spots.
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Common diseases of geranium and their control
The main diseases of geranium are ① leaf spot. Needle-sized, round or irregular brown spots appear on the early leaves, and then gradually expand to dark brown or reddish brown spots, and in severe cases, the whole leaf is covered with disease spots until they dry up and fall off; its stems and branches are also black, wrinkled and rotten, and even the leaves on the stem wither and die, leaving only a few leaves at the top. Preventive measures: a. Greenhouse cultivation density should not be too large, should pay attention to regular ventilation and light transmission; b. Avoid watering plants and avoid splashing water droplets
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Leaf curl disease in geranium virus disease
There are many kinds of geranium virus diseases, and the following common virus diseases are mainly distributed in Europe, America and Asia. Geranium leaf curl disease is also known as geranium wrinkle leaf disease. [pathogen] Pelargonium leaf curl virus (Pelargoniumleafcurlvirus,PLCV), lethal temperature 85-90 ℃. [symptoms] there are faded green spots on the tender leaves, then develop into yellow round or stellate spots, dark yellow in the center, light halos around, and necrotic perforation.
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